<template>
    <div class="todo-header">
		<input type="text" v-model="title" placeholder="请输入你的任务名称，按回车键确认" @keyup.enter="add" />
	</div>
</template>

<script>
import {nanoid} from "nanoid"
export default {
    name:'MyHeader',
	data(){
		return {
			title:''
		}
	},
	methods: {
		add: function(){
			// console.log(this.title);
			if(this.title.trim() === ""){
				alert("请输入你的任务名称，按回车键确认")
			}else{
				const todoObj = {id:nanoid(),title:this.title,done:false}
				this.$emit('addTodo', todoObj)
				this.title = ''
			}
		}
	},
}
</script>

<style scoped>
	/*header*/
	.todo-header input {width: 560px;height: 28px;font-size: 14px;
    border: 1px solid #ccc;border-radius: 4px;padding: 4px 7px;}
	.todo-header input:focus {outline: none;border-color: rgba(82, 168, 236, 0.8);
		box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075), 0 0 8px rgba(82, 168, 236, 0.6);}
</style>